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Finding the Fourth Proportional to 96.27, 144.38 and 27.80

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Solution

The fourth proportional to 96.27, 144.38 and 27.80 is: 41.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.27 : 144.38 = 27.80 : x
  2. Step 2: Convert to fraction form
    96.27/144.38 = 27.80/x
  3. Step 3: Cross multiply
    96.27x = 144.38 × 27.80
  4. Step 4: Simplify right side
    96.27x = 4,013.76
  5. Step 5: Solve for x
    x = 4,013.76/96.27
  6. Step 6: Final answer
    x = 41.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.